Coke oven



F. TOTZEK March 5, 1935.

COKE OVEN Filed March 5, 1931 Uhl.

Patented Mar. 5, 1935 l j UNITED-STATES PATENT--oF`vFicE--j` dinally ofthese chambers.

' 'COKE ovEN Vnppliwtimn March. 5,1931, serial Nd. 520,270 y In GermanyJanuary 25, 1929 comms. (orcos-222i My invention refers to coke ovens ofthe kind in which regenerators are provided for the alternate heating ofgas and air, which are arranged below the coking chambers and extendlongitu- In coke ovens of this type, in which a row of such regeneratorchambers is arranged longitudinally of the battery of ovens, alternateregenerator chambers or groups of such chambers being operated inopposite sense, the drawback has been felt that the walls or partitionsbetween two chambers or groups of chambers are liable to crack under theaction of expansion so that in consequence of the difference of pressureexisting on opposite sides of the walls or partitions gaseous media willescape through such cracks.

In order to remedy this defect it has been suggested to arrange theregenerator chambers in such manner, that a chamber supplied with freshair to be heated is always conned between two chambers supplied with hotwaste air, whereby' the regenerator chambers, in which the poor gas isheated up, are isolated by these air regenerators. While it was possibleto thus prevent gas from mixing with the waste hot air, the crackinhofthe walls or partitions is not done away w1 f In order to render thesecracks innocuous I cover the wall or partition on both sides withplates, held on the wall or partition for instance by means of a slotand key connection, which are so dimensioned that the joints betweenadjoining plates do not register with the joints in the wall orpartition. j

In the drawing affixed to this specication and forming part thereof awall or partition embodying my invention is illustrated diagrammaticallyby way of example.

` In the drawing Fig. 1 is an end elevation and Fig. 2 is a sideelevation with the plate covering partly broken away.

Fig. 3 is a vertical cross-sectional View of a part of a coke ovenbattery embodying the present invention.

Referring to the drawing there is shown av series of alternatehorizontal coking chambers 12 and heating walls 11 therefor arrangedside by side in a row. Regenerators G, I-Isituated below the cokingchambers are separated by a regenerator wall. I'he regenerators G arefor fuel gas inow and the regenerators H for air inflow. The flues 24 ofthe heating walls are connected for passage of combustion products by acrossover duct 26 and when one pair of regenerators G, H, operateforinflow the other pair of regenerators G, H, operate for outflow andsubsequently are reversed as is usual with regenerators. The oven shownin Fig. 3 is of the Well-known crossover type of Becker Patent1,374,546. 10, 10 are the bricks forming the wall or partition and 11are the plates covering both sides thereof. As shown in the drawingthese plates are provided with keys 12 projecting into Wedge-shapedslots arranged for this purpose in the wall or partition. The plates areconsiderably larger than the individual bricks and are so dimensionedthat the joints 14 formed between adjoining plates are not in registerwith the horizontal and vertical joints 13 between the bricks.

Obviously if cracks or fissures are formed in the wall or partition,which are known to arise mostly in the direction of the joints 13, theplates 11 effectually prevent the passage of gaseous media through thesecracks or fissures.

Preferably, if the wall or partition is formed of silica bricks, theplates 11 are formed of a material containing clay as a binder, for suchplates, owing to their lower, almost linear clon'- gation, offerparticular advantages.

Obviously other fixation means may be provided to replace or assist thekeys l2.

I wish it to be understood that I do not desire to be limited to theexact details of construction shown and described for obviousmodiiications will occur to a person skilled in the art.

In the claims affixed to this specification no selection of anyparticular-modication of the invention is intended to the exclusion ofother modications thereof and the right to subsequently make claim toany modication not covered by these claims is expressly reserved.

I clainu- 1. In a coke oven comprising a coking chamber, gas combustionmeans for heating said coking chamber, and a plurality of juxtaposedregenerators communicating with said gas combustion means and operablein alternation with each other for concurrent inflow preheating of agaseous combustion medium and outow of waste gas, said regeneratorsbeing separated from each other by a brick regenerator-wall adjoiningthe Vertical joints of the bricks with the joints between adjoiningcovering plates out of register with the joints between adjoining bricksof the regenerator wall so as to thereby effectively seal theregenerator wall and its brick joints against leakage therethrough fromone regenerator chamber under high pressure to the other under lowerpressure on the opposite sides of the regeneratorr wall.

2. In a coke oven comprising a coking chamber, gas combustion means forheating said coking chamber, and a plurality of juxtaposed regeneratorscommunicating with said gas combustion means and operable in alternationwith each other for concurrent inow preheating of a gaseous combustionmedium and outflow of waste gas, said regenerators being separated fromeach other by a brick regenerator-wall adjoining the regeneratorchambers and comprising courses oi' bricks joined together; theimprovement comprising tile gas sealing covering plates capping theentire wall surfaces of the regenerator wall, the covering plates beingso dimensioned and arranged on the regenerator Wall that each of thecovering plates cover both the horizontal and the vertical joints of thebricks with the joints between adjoining covering plates out of registerwith the joints between adjoining bricks of the yregenerator Wall, andthe covering plates being FRIEDRICH TOTZEK. 20

